DE3000098B1 - Humus prodn. from ground bark - by high temp. composting with urea and humus bacteria - Google Patents

Humus prodn. from ground bark - by high temp. composting with urea and humus bacteria

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Publication number
DE3000098B1
DE3000098B1 DE3000098A DE3000098A DE3000098B1 DE 3000098 B1 DE3000098 B1 DE 3000098B1 DE 3000098 A DE3000098 A DE 3000098A DE 3000098 A DE3000098 A DE 3000098A DE 3000098 B1 DE3000098 B1 DE 3000098B1
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Germany
Prior art keywords
bark
urea
humus
composting
bacteria
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE3000098A
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German (de)
Inventor
Werner 7541 Straubenhardt Schönthaler
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to DE3000098A priority Critical patent/DE3000098B1/en
Publication of DE3000098B1 publication Critical patent/DE3000098B1/en
Ceased legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C9/00Fertilisers containing urea or urea compounds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cultivation Of Plants (AREA)

Abstract

Prodn. of humus from ground bark, esp. conifer bark, comprises mixing with urea and composting with humus bacteria. The urea is pref. 0.5-1, esp. 0.8, kg. per cu.m. of bark. The process efficiently eliminates growth inhibitors present in the bark without the energy-intensive steam-treatment stage generally used.The urea allows composting to be carried out at high temp. and also supplies nitrogen in which the bark itself is relatively poor.

Description

Je nach der Beschaffenheit des zu behandelnden Bodens ist es selbstverständlich möglich, den R?ndenhumus zusätzlich mit weiteren Mischkomponenten, Torf, Mineralien und anderen Substraten anzureichern. It goes without saying, depending on the nature of the soil to be treated possible, the rind humus additionally with further mixed components, peat, minerals and other substrates.

Claims (3)

Patentansprüche: 1. Verfahren zur Herstellung von Humus aus gemahlener Rinde, insbesondere Nadelholzrinde, durch Kompostierung unter Zusatz von Stickstoffträgern und Humusbakterien, d a du r c h g e -kennzeichnet, daß die Rinde mit Harnstoff vermengt wird.Claims: 1. Process for the production of humus from ground Bark, especially softwood bark, from composting with the addition of nitrogen carriers and humus bacteria, d a du r c h g e - indicates that the bark is made with urea is mixed up. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß etwa 0,5 kg bis 1 kg Harnstoff auf 1 m3 frische Rinde zugesetzt wird. 2. The method according to claim 1, characterized in that about 0.5 kg to 1 kg of urea is added to 1 m3 of fresh bark. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß etwa 0,8 kg Harnstoff auf 1 m3 frische Rinde zugesetzt wird. 3. The method according to claim 1 or 2, characterized in that About 0.8 kg of urea is added to 1 m3 of fresh bark. Die Erfindung betrifft ein Verfahren zur Herstellung von Humus aus gemahlener Rinde, insbesondere Nadelholzrinde, durch Kompostierung unter Zusatz von Stickstoffträgern und Humusbakterien. The invention relates to a method for producing humus from ground bark, especially softwood bark, by composting with additives of nitrogen carriers and humus bacteria. Ein derartiges Verfahren ist durch die DE-AS 2644304 bekannt geworden. Diesem Verfahren liegt die Tatsache zugrunde, daß die Vorräte an Torf in letzter Zeit allmählich knapper werden und man deshalb dazu übergeht, die als Abfallprodukt bei Sägewerken anfallende Rinde zu Humus weiterzuverarbeiten. Such a method has become known from DE-AS 2644304. This process is based on the fact that the stocks of peat last Time is gradually becoming scarce and one therefore goes over to it as a waste product Processing of bark from sawmills into humus. Hauptproblem sind dabei die in der Rinde enthaltenen wachstumshemmenden Stoffe wie Gerbsäure, Tannine, Harze usw. Um diese Stoffe unwirksam zu machen, ist es bekannt, die zerkleinerte Rinde einer Heißdampfbehandlung zu unterziehen, wobei die Rinde einer Temperatur in der Größenordnung von etwa 100 C ausgesetzt wird. Diese Dampfbehandlung bewirkt chemische Reaktionen in der Molekularstruktur der Rinde, durch die ihre wuchshemmenden Stoffe in kurzer Zeit abgebaut werden und man einen verwertbaren Humusbildner erhält.The main problem is the growth-inhibiting substances contained in the bark Substances like tannic acid, tannins, resins etc. To make these substances ineffective is it is known to subject the shredded bark to a superheated steam treatment, wherein the bark is exposed to a temperature of the order of 100 C. This steam treatment causes chemical reactions in the molecular structure of the Bark, through which its growth-inhibiting substances are broken down in a short time and you receives a usable humus former. Hieran nachteilig ist in erster Linie der hohe apparative Aufwand zur Durchführung der Dampfbehandlung und die vor allem in letzter Zeit stark angestiegenen Kosten für die zum Dämpfen notwendige Heizenergie. Hinzu kommt, daß das Produkt durch diese Behandlung sterilisiert wird, wodurch wertvolle Aktivstoffe der Rinde verlorengehen. The main disadvantage here is the high expenditure on equipment to carry out the steam treatment and the particularly recently increased sharply Cost of the heating energy required for steaming. On top of that, the product through this treatment it is sterilized, thereby creating valuable active ingredients of the bark get lost. Hiervon ausgehend, liegt die Aufgabe der vorliegenden Erfindung darin, unter Abkehr von der kostspieligen Heißdampfbehandlung ein Kompostierungsverfahren anzugeben, bei dem die erwähnten wuchshemmenden Stoffe zuverlässig zerstört werden und man ein Produkt mit ausgeglichener Nährstoffkonzentration erhält. Starting from this, the object of the present invention is to a composting process, turning away from the costly superheated steam treatment indicate where the mentioned growth-inhibiting Substances are reliably destroyed and a product with a balanced nutrient concentration is obtained. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Rinde mit Harnstoff vermengt wird. Es hat sich nämlich nach langwierigen Versuchen gezeigt, daß durch einen Zusatz von Harnstoff eine intensivere Kompostierung bei höherer Temperatur erzielt werden kann, so daß die wuchshemmenden Stoffe abgebaut werden, ohne daß eine zusätzliche Wärmezufuhr von außen notwendig ist. Das erfindungsgemäße Verfahren ist dadurch erheblich kostengünstiger. Zugleich hat der Harnstoffzusatz den Vorteil, daß das Endprodukt eine ausgewogene Näherstoffstoffverteilung aufweist, da der relativ niedrige Stickstoffanteil der Rinde durch den im Harnstoff enthaltenen Stickstoff kompensiert wird. This object is achieved according to the invention in that the bark is mixed with urea. After lengthy attempts it has been shown that that by adding urea a more intensive composting at higher Temperature can be achieved so that the growth-inhibiting substances are broken down, without the need for additional heat from the outside. The inventive This makes the process considerably more cost-effective. At the same time has the urea additive the advantage that the end product has a balanced nutrient distribution, because the relatively low nitrogen content of the bark due to that contained in urea Nitrogen is compensated. Es ist zwar bereits aus der DE-AS 26 44 304 bekannt, der Baumrinde vor der Zerkleinerung Abfälle in Form von Ästen und Blättern beizugeben, um die Stickstoffarmut der Rinde zu beheben. Hinweise im Sinne der erfindungsgemäßen Harnstoffzugabe und der dadurch bewirkten hohen Kompostierungstemperatur unter Vermeidung äußerer Wärmezufuhr lassen sich dieser Entgegenhaltung aber nicht entnehmen. It is already known from DE-AS 26 44 304, the tree bark Before shredding, add waste in the form of branches and leaves to the To remedy nitrogen depletion of the bark. Notes in terms of adding urea according to the invention and the resulting high composting temperature while avoiding external However, heat supply cannot be derived from this citation. Aufgrund der durchgeführten Versuche hat es sich als zweckmäßig erwiesen, daß auf ein m3 frische Rinde etwa 0,5 kg bis 1 kg, vorzugsweise etwa 0,8 kg Harnstoff und etwa 0,2 m3 Humusbakterien zugesetzt werden. On the basis of the tests carried out, it has proven to be useful that for one m3 of fresh bark about 0.5 kg to 1 kg, preferably about 0.8 kg of urea and about 0.2 m3 of humus bacteria are added. Das erfindungsgemäße Verfahren wird etwa in der Weise durchgeführt, daß die Nadelholzrinde zunächst gemahlen wird, und zwar zu einer Korngröße von 0 bis 30 mm, vorzugsweise 0 bis 15 mm. Die gemahlene Rinde wird dann im oben angegebenen Verhältnis mit Harnstoff und Humusbakterien vermengt und sodann kompostiert. Durch den Harnstoffzusatz ergibt sich dabei eine Temperatur von etwa 70"C, wodurch nicht nur die wuchshemmenden Stoffe, sondern auch Unkraut und tierische Schädlinge vernichtet werden. The method according to the invention is carried out approximately in the manner that the softwood bark is first ground to a grain size of 0 up to 30 mm, preferably 0 to 15 mm. The ground bark is then given in the above Ratio mixed with urea and humus bacteria and then composted. By the addition of urea results in a temperature of about 70 ° C, which does not only the growth-inhibiting substances, but also weeds and animal pests are destroyed will. Es liegt im Rahmen der Erfindung, anstelle von reinem Harnstoff entsprechend wirkende Harnstoff-Verbindungen für die Kompostierung zu verwenden. It is within the scope of the invention, instead of pure urea accordingly to use active urea compounds for composting. Vergleichende Untersuchungen an staatlichen Versuchsanstalten mit derart verarbeiteter N adelholzrinde ergaben einen dreimal höheren Humusbakteriengehalt, sehr günstige pH-Werte (6,1), doppelten Gehalt an Abwehrstoffen gegenüber Pilzkrankheiten, absolute Vergießfestigkeit und ein durch das Substratgerüst (Körnung) schnelleres Wurzelwachstum. Comparative studies at state research institutes with coniferous bark processed in this way resulted in a three times higher humus bacteria content, very favorable pH values (6.1), double the content of antibodies against fungal diseases, absolute potting resistance and faster due to the substrate structure (grain size) Root growth.
DE3000098A 1980-01-03 1980-01-03 Humus prodn. from ground bark - by high temp. composting with urea and humus bacteria Ceased DE3000098B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3000098A DE3000098B1 (en) 1980-01-03 1980-01-03 Humus prodn. from ground bark - by high temp. composting with urea and humus bacteria

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3000098A DE3000098B1 (en) 1980-01-03 1980-01-03 Humus prodn. from ground bark - by high temp. composting with urea and humus bacteria

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DE3000098B1 true DE3000098B1 (en) 1981-07-23

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232239A1 (en) * 1982-08-30 1984-03-01 Hans 8939 Zaisertshofen Ruf Method and device for the exploitation of bark
DE3235452A1 (en) * 1982-09-24 1984-03-29 Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München METHOD FOR THE PRODUCTION OF A COMPLETE HUMAN CARRIER AND DUENGERS BASED ON Bark
DE3330749C1 (en) * 1983-08-26 1984-10-11 GPV Gartenbedarfs GmbH & Co KG Produktions- & Vertriebsgesellschaft, 4950 Minden Fertiliser and soil improvement agent
DE3416313A1 (en) * 1984-05-03 1985-11-28 Theodor Dr.sc.agr. 3400 Göttingen Weichelt Method for processing waste seeds
AT379373B (en) * 1984-05-30 1985-12-27 Chemie Linz Ag METHOD FOR THE PRODUCTION OF A COMPLETE HUMAN CARRIER AND DUENGERS BASED ON Bark
DE3435121C1 (en) * 1984-09-25 1986-05-28 Max 8213 Aschau Morant Soil improvement composition comprising rotted tree bark and rotted straw
GB2246566A (en) * 1990-07-19 1992-02-05 Sinclair Horticulture & Leisur Growing medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2432432A1 (en) * 1973-07-13 1975-01-30 Caclin Jean ORGANIC-MINERAL NATURAL DUCT AND METHOD FOR MANUFACTURING THESE
DE2644304B2 (en) * 1976-10-01 1978-09-28 Egbert 7601 Ortenberg Ufheil Process for the production of a humus former and fertilizer from tree bark

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2432432A1 (en) * 1973-07-13 1975-01-30 Caclin Jean ORGANIC-MINERAL NATURAL DUCT AND METHOD FOR MANUFACTURING THESE
DE2644304B2 (en) * 1976-10-01 1978-09-28 Egbert 7601 Ortenberg Ufheil Process for the production of a humus former and fertilizer from tree bark

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232239A1 (en) * 1982-08-30 1984-03-01 Hans 8939 Zaisertshofen Ruf Method and device for the exploitation of bark
DE3235452A1 (en) * 1982-09-24 1984-03-29 Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München METHOD FOR THE PRODUCTION OF A COMPLETE HUMAN CARRIER AND DUENGERS BASED ON Bark
EP0104355A1 (en) * 1982-09-24 1984-04-04 Chemie Linz Aktiengesellschaft Process for the preparation of a complete humus carrier and fertilizer based on tree-bark
DE3330749C1 (en) * 1983-08-26 1984-10-11 GPV Gartenbedarfs GmbH & Co KG Produktions- & Vertriebsgesellschaft, 4950 Minden Fertiliser and soil improvement agent
DE3416313A1 (en) * 1984-05-03 1985-11-28 Theodor Dr.sc.agr. 3400 Göttingen Weichelt Method for processing waste seeds
AT379373B (en) * 1984-05-30 1985-12-27 Chemie Linz Ag METHOD FOR THE PRODUCTION OF A COMPLETE HUMAN CARRIER AND DUENGERS BASED ON Bark
DE3435121C1 (en) * 1984-09-25 1986-05-28 Max 8213 Aschau Morant Soil improvement composition comprising rotted tree bark and rotted straw
GB2246566A (en) * 1990-07-19 1992-02-05 Sinclair Horticulture & Leisur Growing medium
GB2246566B (en) * 1990-07-19 1994-04-06 Sinclair Horticulture & Leisur Growing medium

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